2003 F250 crew cab 4x4 7.3 auto.......bone stock except the 6637 air filter. If I were to consider removal of the factory exhaust system, and install a 4" turbo-back system, would there really be any gains? My brother has a 4" MBRP system he wants to sell me...he mistakenly bought it for his '97 and he offered it to me for about half of what he paid for it.

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:

Password

Please enter a password for your user account. Note that passwords are case-sensitive.

Password:

Confirm Password:

Email Address

Please enter a valid email address for yourself.

Email Address:

OR

Log-in

User Name

Password

Remember Me?

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.